Gate-valve



(No Mozel.)

P. G.. NEISBNDORFER.

GATE VALVE. No. 286,475. Patented 0ot. 9, 1883.

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PETER G. NEISDORFER, OFY BALTDIORE, MARYLAND.

GATELVALVE.

SPECIFICATION forming part of Letters Patent No. 286,475, dated Cctober9, 1883,

Application filed February lil, 1883. (No model.)

.To alt when?, t may concern:

Be it known that I, Pn'rnn Gnonon Nmsnx- Donnnn, of Baltimore, in thecounty of Baltimore and State of Maryland, haveinvented certain. new anduseful Improvements in Gate- Valves; and I do hereby-declare that thefollowing isla full, clear, and exact description thereof, referencebeing had to the accompany ing drawings, and to the letters of referencemarked thereon,which form part of this specification, in Which- Figure 1is a view partly in section of my valve-gate applied to the nozzle of abeer-tank for the purpose of racking off beer into kegs or barrels. Fig.2 is a vertical section of the valve-gate, showing the gate in 'twopositions by the aid of dotted lines. Fig. 3 is ahorizontal section.Fig. 4; isa transverse sectional view of my improved device.

rlhis invention relates to gates or straight sliding valvesvhieh areespecially designed for/use in connection with the goose-necks of beerhogsheads or tanks, from which beer is racked off into kegs; andinyinvention consists in a gate composed of tivo plates, havingexpa-nsion-sprin gs interposed between them, in a manner Whi ch will befully understood from the following description, when taken inconnection with the annexed drawings.

Beer-brewers know that it is necessaryT to rack their beer quickly, inorder to prevent the external air from mixing with it. The common methodof taking beer from tanks or large ves sels and introducing the beerinto barrels or easks is to tap the tanks and to draw off by meansV offlexible hose or pipes, the taps being provided with internal valves,the stems of Which are screw-threaded andhave external handles. Myobject is to apply to the nozzle of the drawoif-cock a valve which canbe operated instantaneously to cut off and allow a free iiow of fluid,and which will be self-packing.

A designates a rectangular valvebox,which is constructed with a tubularneck, B, having a female screw-thread on one side and atubular neck, C,having a male thread on the opposite side. The axes of tivoscrew-couplings, B

C, coincide, and at their inner ends are formed ground annularvalve-seats e a, which are raised from the internal surfaces of the boxA. One end of this box is contracted with a rectangular flange, @whichis adapted to receive a cap,

D, of a shape and size corresponding to the flange b of the box A. Thiscap is secured to the box-iiange by screws, with an interposed pack- 5 5ing, and through a stuffing-box, E, of said cap passes'a rod, F, on theouter end of which is a T- handle or hand-grip, F, by means ofivfhiclithen i 4' rod F can be moved endwise Without turning it aboutits axis. This rod is annularlygrooved 6o near its inner'end, asindicated at c.

G G designate two rectangular valve or gate plates,the outer surfaces ofwhich are dressed, so as to form close tace-joints with the seats c a.The inner side of the valve or gate plateG 6 5 is cast with asemi-annular groove, f, a semicircular depression, j", a socket, g, andcircular concentric flanges h 7l., between which is a groove, h', andWithin which is a hole, H, directly through' the plate G. The inner sideof 7o the valve or gate plate G is the duplicate of the valve-plateG-,with this exception, that surrounding the hole H through this plate Gis a circular depression, i, into which the concentric flanges h 7L areallowed to-play.

S designates a coiled spriiig,wliich is applied in the groove 11.', andwhich bears against that part of the web which immediately surrounds thehole through the plate C.

S designates a coiled springof a compara 8o tively small diameter, whichis fitted into the socket g.

It is obvious that thegate-valve which Ihave above described isexpansible and self-adaptable to its seats irrespective of thevalve-rod, which 'rod,while it is allowed to turn freely about its axis,is also the means by which the Y gate is endwise movable to open andshut the huid-Way through the box A. The springs S S act to spread apartthe valve-plates G G', and go to hold them positively against thevalve-seats in the box A, so that the wearing of the bearing-faces ofthe said plates and seats is conipensated for.

It will be seen by my invention that I can change the hose and directthe stream of .beer from one hogshead to another Without any loss ofbeer. My valve may be attached to the end of a hose for discharging beerdirectly through the holesof barrels or casks.

Having thus fully described my invention, what I claim as new, anddesire to secure by Letters Patent, is-

1.Y A gate-valve consisting of a rectangular ICO valve-boX havingcouplings B C and internal valve-seats, A in combination with thetwoperforated plates constituting the gate-valve,one or :more springsbetween said plates7 andavalverod, all constructed and adapted tooperate substantially in the manner and for the purposes described.

2. In a gate-valve, the combination of the valve-box having externalCouplings and internal valve-seats, and a gate-valve formed of twoperforated plates having coneentrieiian ges h 7L, a circular depressionto receive said anges, and one or more eXpanding-springs7 allConstructed and adapted to ope 1ate substantially in the manner and fortlie purposes described.

y In testimony that I Claim the foregoing as my own I ai'lix mysignature in presence of two Witnesses.

` Vitnesses:

F. O. MCCLEARY, W. Rl KnYWoR'rl-L P. G. NEISENDORFEI%.

